Articles by Leonardo Veras about backend development with Python and Django, Linux, projects and personal topics.https://www.lvleo21.com/en/enhttps://www.lvleo21.com/en/blog/minidlna-manager/https://www.lvleo21.com/en/blog/minidlna-manager/How a Marvel marathon turned into a GTK4 app to manage MiniDLNA on Linux, with a privileged helper through Polkit, ACLs, a systemd override and libadwaita 1.1 compatibility.Fri, 25 Sep 2026 00:00:00 GMTpythonlinuxgtkprojectshttps://www.lvleo21.com/en/blog/django-ordering-querysets/https://www.lvleo21.com/en/blog/django-ordering-querysets/How to use order_by to sort in ascending and descending order, break ties with more than one field, ignore case, control where null values go and set a default order on the model.Wed, 07 Aug 2024 00:00:00 GMTdjangopythonhttps://www.lvleo21.com/en/blog/django-how-to-use-the-shell/https://www.lvleo21.com/en/blog/django-how-to-use-the-shell/How to open the Django shell, make use of its automatic imports, run a .py file with manage.py shell and when to turn the script into a management command.Wed, 07 Aug 2024 00:00:00 GMTdjangopythonhttps://www.lvleo21.com/en/blog/how-to-use-pagination-in-django/https://www.lvleo21.com/en/blog/how-to-use-pagination-in-django/Pagination with ListView and paginate_by, the page_obj attributes in the template, numbered links, filters kept in the URL and API pagination with Django REST Framework.Wed, 03 Jun 2020 00:00:00 GMTdjangopythonhttps://www.lvleo21.com/en/blog/how-to-use-django-role-permissions/https://www.lvleo21.com/en/blog/how-to-use-django-role-permissions/Role-based access control with django-role-permissions: roles, assigning them to users, checks in views and templates, object-level permissions and Django REST Framework integration.Wed, 27 May 2020 00:00:00 GMTdjangopython